Electronic ignition works very well however, I use my car for touring and want reliability and ease of diagnosis should a problem crop up. After many thousands of miles on tours, I have never had an ignition problem but I have spent a lot of time on the side of the road trying to help others diagnose a problem with their electronic ignition.
I strongly recommend anyone who is using electronic ignition in their Model A to also carry with them a conventional distributor that is already set up and timed to their engine so the distributor can easily be changed on the side of the road and they can get on their way.
Again, this is just my opinion.
Chris W.